Yeti ASR - User Manual

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Summary

Geometry

ASR Geometry Specifications

Comprehensive table of geometry measurements for different frame sizes.

Frame Standards

ASR Technical Standards

Details on wheel size, rear shock, bottom bracket, and headset standards.

Frame Assembly

Frame Assembly Preparation and Tools

Essential tools and prep steps for frame assembly.

Step-by-Step Frame Assembly

Detailed instructions for assembling the ASR frame.

Exploded View

ASR Parts Identification

Visual breakdown and list of all frame components.

The device described in the manual is the Yeti ASR mountain bike frame.

Function Description:

The Yeti ASR is a high-performance mountain bike frame designed for off-road use, specifically for cross-country (XC) racing and aggressive trail riding. It features a full-suspension design with 115mm of rear wheel travel, utilizing Yeti's ASR suspension technology. This system incorporates a flex-stay pivot point and lightweight hardware to deliver efficient pedaling performance while providing smooth and supportive suspension over rough terrain. The frame is built to be stiff, durable, and compliant, offering a balanced ride quality for both beginner cyclists and seasoned professionals. It is designed to accommodate various components and configurations, allowing for personalization and upgrades.

Important Technical Specifications:

Travel: 115mm rear wheel travel
Wheel Size: 29"
Frame Sizes: Available in XS, SM, MD, LG, XL
Rear Shock: 190mm x 40mm (custom tuned by Yeti for optimal performance)
Bottom Bracket: BSA 73mm
Rear Wheel: 148mm x 12mm (Boost) with SRAM's Universal Derailleur Hanger (UDH)
Seatpost Diameter: 31.6mm
Chainline: 55mm
Headset: Integrated 41mm/52mm Tapered
Rear Brake Post Mount: 160mm (direct mount, can accept up to 180mm with an adaptor)
Shock Hardware: Front: M8x20mm, Rear: M8x30mm
Min/Max Chainring: 28T min/36T max (XS-S); 28T min/38T max (M-XL)
Axle Spec: 172mm M12x1.0
Fork Travel (Recommended): 120mm (tested up to 140mm)
Head Tube Angle: 66.5 degrees
Effective Seat Tube Angle: 75.5 degrees
Material: High modulus carbon fiber for both main frame and swing arm (TURQ Series for highest quality, Carbon Series for a more aggressively priced option with slightly more weight)
Weight Difference (TURQ vs. Carbon Series): Carbon series ASR weighs approximately 160g more than TURQ series.
Max System Weight: Driven by component ratings (e.g., M1900 and XM1700 wheels rated to 120kg; XRC1200 rated to 110kg).

Usage Features:

Active Suspension Race (ASR) Suspension System: Provides 115mm of efficient and supportive rear travel.
High Modulus Carbon Fiber: Ensures strength, stiffness, and efficiency.
Lightweight Suspension Linkage and Hardware: Features a forged 7075 aluminum rocker link and titanium shock mounting hardware for reduced weight and increased stiffness.
Rattle-Free Cable Port Assembly: Clamping cable ports secure cables and hoses, reducing movement and noise, and offering a clean aesthetic. Ports are configurable for wired or wireless components.
Integrated Tapered Head Tube (41mm/52mm): Allows for a larger head tube area, increasing stiffness and lowering overall ride height.
Custom Down Tube Protector and Ribbed Chain Guards: Protect the frame and reduce chain slap noise.
Integrated Axle and Universal Derailleur Hanger (UDH): Dedicated 12x148 boost dropouts provide strength, stiffness, and easy hanger/wheel installation.
Custom Tuned Rear Shock: Optimized suspension performance to complement ASR kinematics.
Custom Integrated Chainguide: Lightweight chainguide for reliable chain retention.
Internal Cable Routing for Dropper Post: Designed for internally routed long-drop seatposts, accommodating dropper posts for aggressive riding.
Two Water Bottle Mounts: Fits two water bottles inside the main frame (XS: 21oz seat tube, 15oz down tube; S-XL: 21oz seat tube, 24oz down tube). Yeti's 15oz Hot Lap bottle and side-entry cage are recommended for tight clearances.
Dropper Post Insertion Guide: Provides detailed measurements and checks to ensure proper dropper post fitment, preventing interference with the frame or tire during suspension compression. Supports both cabled and wireless droppers.
Geometry: Features a 66.5-degree head tube angle and 75.5-degree effective seat tube angle for a balanced ride.

Maintenance Features:

Comprehensive Maintenance Schedule: Guidelines for routine checks and lubrication (e.g., chain, tire pressure, brakes, cables, bolts, headset, pads, tires, spokes, chain wear).
Detailed Torque Specifications: Specific torque values for individual parts and assembly steps are provided to ensure proper and safe assembly.
Bearing Press Assembly Instructions: Step-by-step guide for installing main pivot and link bearings, emphasizing caution to avoid damage.
Cable Routing Set-Up Instructions: Clear guidance for routing brake, derailleur, dropper post, and cabled lockout cables through the frame.
Exploded View and Parts List: Detailed diagrams and lists of all frame components and hardware, including part numbers, descriptions, torque values, and quantities, to aid in assembly and replacement.
Rebuild Kits: Available kits for bearings, cable ports, downtube port covers, protectors, chainguides, hardware, and alloy links, simplifying maintenance and repairs.
Lifetime Warranty: All 2019 (or newer) frames, including Switch Infinity, are covered for life against manufacturing defects for the original purchaser. Paint and finish are covered for 1 year. Requires online registration and processing through an authorized Yeti Cycles dealer. Does not cover damage from ordinary wear and tear, neglect, or intentional destruction. A crash replacement program is also offered at a reasonable price.
Authorized Dealer Service: Yeti recommends that all service and repairs be performed by an authorized Yeti Dealer due to the complexity of modern bicycle components.
Online Resources: References to Yeti's Shock Setup Guide and SRAM's online resources for suspension tuning and Flight Attendant setup.